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package files
import (
"fmt"
"strings"
)
func verifyRefnameAvailable(name string, existing map[string]struct{}, writes []string, deleted map[string]struct{}) error {
for existingName := range existing {
if existingName == name {
continue
}
if _, skip := deleted[existingName]; skip {
continue
}
if refnamesConflict(name, existingName) {
return fmt.Errorf("refstore/files: reference name conflict between %q and %q", name, existingName)
}
}
for _, other := range writes {
if other == name {
continue
}
if refnamesConflict(name, other) {
return fmt.Errorf("refstore/files: reference name conflict between %q and %q", name, other)
}
}
return nil
}
func refnamesConflict(left, right string) bool {
return left == right ||
strings.HasPrefix(left, right+"/") ||
strings.HasPrefix(right, left+"/")
}
|
